title: Diffraction inhibition in two-dimensional photonic crystals.
abstract: We show the existence of flat equal-frequency contour across the entire first Brillouin zone in two-dimensional photonic crystals. Under this condition, light diffraction can be inhibited. Moreover, the beam can be highly localized between two neighboring rows of the defect-free photonic crystal. Such a finding may have novel applications in light beam manipulations and on-chip integrated photonic devices.
authors.affiliation: Advanced Photonic Center, School of Electronic Science and Engineering, Southeast University, Nanjing, China.
authors.forename: Lingling
authors.initials: L
authors.lastname: Zhang
authors.forename: Qiwen
authors.initials: Q
authors.lastname: Zhan
authors.forename: Jiayu
authors.initials: J
authors.lastname: Zhang
authors.forename: Yiping
authors.initials: Y
authors.lastname: Cui